| 1234567891011121314151617181920 | 'use strict'const util = require('util')const winston = require('winston')const _ = require('lodash')let BugsnagLogger = winston.transports.BugsnagLogger = function (options) {  this.name = 'bugsnagLogger'  this.level = options.level || 'warn'  this.bugsnag = require('bugsnag')  this.bugsnag.register(options.key)}util.inherits(BugsnagLogger, winston.Transport)BugsnagLogger.prototype.log = function (level, msg, meta, callback) {  this.bugsnag.notify(new Error(msg), _.assignIn(meta, { severity: level }))  callback(null, true)}module.exports = BugsnagLogger
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